TI-2026-63091 Aliases CVE-2026-93659 GHSA-9rr2-pvrh-g3pm

Concrete CMS Community Store before 2.7.8 Stored XSS

LOW 39CWE-79Published 2026-09-18 · Updated 2026-09-28

Key facts

Attack vector: Network
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Concrete CMS Community Store before 2.7.8 renders customer-supplied order fields without HTML escaping in checkout and admin views. Unauthenticated attackers can store script payloads in billing name, email, or phone fields that execute in authenticated manager sessions to create rogue accounts or exfiltrate data.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00372 31st percentileScored 2026-11-07

Fix Fixed community_store (concretecms-community-store): 2.7.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
concretecms-community-store	community_store	before 2.7.8	2.7.8	Patch available	CNA

community_store Vendorconcretecms-community-store Affected before 2.7.8 Fixed in 2.7.8 Patch available CNA

Remediation

Fix · CNA community_store (concretecms-community-store) Fixed in 2.7.8

Timeline

2026-10-02 Threatist record created from CVE-2026-93659
2026-10-03 Alias added: GHSA-9rr2-pvrh-g3pm

References

Patch 1

Add escaping of values

Other 3

TI-2026-63661 Concrete CMS Community Store before 2.7.8 Predictable Digital Download Token CVSS 4.0HIGH 8.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences